The actress' rep confirmed the news to Us Weekly soon after the Shameless star shared the news on social media.
"I thought I knew love before, but now I know love on a completely different level! Can't believe my baby is here! #overwhelmed #blessed," she tweeted Tuesday.
The baby girl weighed in at at 6 lbs., 3 oz and measured 20 inches in length. The first-time parents named her Cai MyAnna.
Hampton and Dukes married in 2000.